What is the CVSS score of CVE-2023-40158?

CVE-2023-40158 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.9%.

Nr4H Firmware CVE-2023-40158

HIGH

Hidden Functionality (CWE-912)

2023-08-23 vultures@jpcert.or.jp

Command Injection Nr4H Firmware Nr8H Firmware Nr16H Firmware Dr 16F42A Firmware Dr 16F45At Firmware Dr 8F42A Firmware Dr 8F45At Firmware Dr 4Fx1 Firmware Dr 16H Firmware Dr 8H Firmware Dr 4H Firmware Drh8 4M41 A Firmware Nr8 4M71 Firmware Nr8 8M72 Firmware Nr 16M Firmware Nr 16F85 8Pra Firmware Nr 16F82 16P Firmware Nr 4F Firmware Nr 8F Firmware Dr 16M52 Firmware Dr 16M52 Av Firmware Dr 8M52 Av Firmware Dr 4M51 Av Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Aug 23, 2023 - 03:15 nvd

HIGH 8.8

DescriptionNVD

Hidden functionality vulnerability in the CBC products allows a remote authenticated attacker to execute an arbitrary OS command on the device or alter its settings. As for the affected products/versions, see the detailed information provided by the vendor. Note that NR4H, NR8H, NR16H series and DR-16F, DR-8F, DR-4F, DR-16H, DR-8H, DR-4H, DR-4M41 series are no longer supported, therefore updates for those products are not provided.

AnalysisAI

Hidden functionality vulnerability in the CBC products allows a remote authenticated attacker to execute an arbitrary OS command on the device or alter its settings. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-912. Hidden functionality vulnerability in the CBC products allows a remote authenticated attacker to execute an arbitrary OS command on the device or alter its settings. As for the affected products/versions, see the detailed information provided by the vendor. Note that NR4H, NR8H, NR16H series and DR-16F, DR-8F, DR-4F, DR-16H, DR-8H, DR-4H, DR-4M41 series are no longer supported, therefore updates for those products are not provided. Affected products include: Cbc Nr4H Firmware, Cbc Nr8H Firmware, Cbc Nr16H Firmware, Cbc Dr-16F42A Firmware, Cbc Dr-16F45At Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.